Sergio Ortega

Sergio Ortega

Associate, Tax and Commercial Litigation

Contact Information

tel: 604.692.2710



Bar Admission

  • British Columbia, 2019


  • University of Victoria, J.D. (2018)
  • University of Alberta, BComm. (Distinction)


Spanish, English

Sergio practices commercial and tax litigation. He excels at giving practical, solution-oriented advice to individual, corporate, and institutional clients on a wide range of disputes. His experience includes federal and provincial tax appeals, contractual disputes, judicial reviews, constitutional challenges, class actions, bankruptcy, injunctions, and construction litigation. Sergio is adept at navigating the rules of procedure. He has represented clients in the Supreme Court of British Columbia, the Provincial Court of British Columbia, the Alberta Court of Queen’s Bench, and the Tax Court of Canada.

Sergio joined Osler as a summer student in 2017 and completed his articles with the firm in 2018-2019.

Prior to joining Osler, Sergio completed the J.D. program at the University of Victoria. During his time at the University of Victoria, Sergio worked as a tutor to his peers and as a research assistant to Carol Liao, Tim Richards, and the British Columbia Law Institute. Sergio also participated in the Environmental Law Centre and the Business Law Clinic.

  • Vigil Health Solutions Inc.

    Vigil Health Solutions in its acquisition by ASSA ABLOY

  • Foodee

    Foodee in its acquisition by Sodexo

  • Mobify

    Mobify in its acquisition by Salesforce

  • First Nations Finance Authority

    First Nations Finance Authority in its $138 million offering of Senior Secured Bonds

    • Wheaton Precious Metals in its settled transfer pricing appeal in the Tax Court of Canada.
    • A public company in its pending transfer pricing appeal in the Tax Court of Canada.
  • Find More

  • John McAlpine Prize in Civil Liberties and Human Rights, 2018
  • Law Foundation of British Columbia/David Strong Leadership in Legal Studies Award, 2016
  • McCarthy Tétrault LLP Alumni Entrance Scholarship, 2015 
  • Faculty of Law Access Scholarship, 2015

  • Access Pro Bono, Volunteer, 2020-2021
  • University of Victoria Business Law Clinic, Student, 2016
  • University of Victoria Environmental Law Centre, Student, 2016
  • Pro Bono Students Canada, Student, 2015